@Nullable
private BackendConfig getCustomBackend() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
String backend = prefs.getString(CUSTOM_BACKEND_PREFERENCE, null);
if (backend != null) {
try {
return BackendConfig.byName().apply(backend);
} catch (NoSuchElementException ex) {
Timber.w("Could not find backend with name: %s", backend);
}
}
return null;
}
private void saveBackendConfig(BackendConfig backend) {
PreferenceManager.getDefaultSharedPreferences(context)
.edit()
.putString(CUSTOM_BACKEND_PREFERENCE, backend.environment())
.commit();
}
public class BackendPicker {
private static final String CUSTOM_BACKEND_PREFERENCE = "custom_backend_pref";
private final Context context;
private final String[] backends =
new String[] {
BackendConfig.StagingBackend().environment(), BackendConfig.ProdBackend().environment()
};
public BackendPicker(Context context) {
this.context = context;
}
public void withBackend(Activity activity, final Callback<Void> callback) {
if (shouldShowBackendPicker()) {
showDialog(activity, callback);
} else {
callback.callback(null);
}
}
public void withBackend(final Callback<Void> callback) {
BackendConfig be = getBackendConfig();
if (be != null) {
ZMessaging.useBackend(be);
callback.callback(null);
}
}
private void showDialog(Activity activity, final Callback<Void> callback) {
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Select Backend");
builder.setItems(
backends,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
BackendConfig be = BackendConfig.byName().apply(backends[which]);
ZMessaging.useBackend(be);
saveBackendConfig(be);
callback.callback(null);
}
});
builder.setCancelable(false);
builder.create().show();
}
private boolean shouldShowBackendPicker() {
if (!BuildConfig.SHOW_BACKEND_PICKER) {
return false;
}
return !PreferenceManager.getDefaultSharedPreferences(context)
.contains(CUSTOM_BACKEND_PREFERENCE);
}
@Nullable
private BackendConfig getBackendConfig() {
return BuildConfig.SHOW_BACKEND_PICKER ? getCustomBackend() : BuildConfigUtils.defaultBackend();
}
private void saveBackendConfig(BackendConfig backend) {
PreferenceManager.getDefaultSharedPreferences(context)
.edit()
.putString(CUSTOM_BACKEND_PREFERENCE, backend.environment())
.commit();
}
@Nullable
private BackendConfig getCustomBackend() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
String backend = prefs.getString(CUSTOM_BACKEND_PREFERENCE, null);
if (backend != null) {
try {
return BackendConfig.byName().apply(backend);
} catch (NoSuchElementException ex) {
Timber.w("Could not find backend with name: %s", backend);
}
}
return null;
}
}
